I got the U360's with the hard springs. I recommend the hard springs as it made the joystick movement feel a lot smoother. Didn't get the restrictor plates. Not because I don't think it needs them but because I figured I didn't need them.
The only joysticks I own are the u360's so I can't really compare them to anything. When I first tried them, the throw did kind of feel just a tad long. I've since gotten used to it. Plus used to no clicking sound and the feel of no corners like you feel when using a normal switch joystick. It is pretty much playable though. But like someone already mentioned, you can't really tell until you try it for yourself. Get the sticks, get the restrictors if you feel it neccessary. But just try it and keep whatever you feel has the better fitting.
As for me, I've gotten used the hard springs and no restrictors.